There are some notes in the July issue only. Otherwise, there are no notes. Although there are notes, it is known for its easy-to-understand solutions and problem-solving methods. Especially in Japanese, you will develop the ability to understand the content and summarize the sentences in your own words. In math, fractions are explained using the example of a whole cake, and the solutions are so insightful that even adults will be impressed. I also learned a lot. It was 6,600 yen per month for 4 subjects, so it's for 3 months. It's the perfect amount for reviewing the first and second terms during the New Year holidays. It's a good flow if you like it and start studying with Z-Kai. Unlike other teaching materials, there are no unnecessary things like games or supplements, and I think the content is very good as a result.